Improvement in threshing-machines



I F.-A. GEISLER.

Thrashing Machine.

I No; 95,016. Patented'Sept. 21, 1869.

v I I N- PETERS, PHOTO-LITMOGRAPNER, WASHINGTON. By C.

flatbed fitatw ea can.

, parts.

;F. A GEI SLE R or B IST L, RHonnIsLA vD.

Lettm's Patent N .95',o1c, dated Septembcr' 21, 1869.

I-IMPROVEMENT m Tannsmne-mcnmns.

I 1 The Schedule referred to in these Letters Patent and making partof the same.

To all whom it 'm -a/y concern:

-Be it known that I, F. A. GEISLER, of Bristol, in the county of Bristol, and State of Rhode Island, have invented a new and useful Improvement in Threshing- Machiues; and I hereby declare that the following is a full,,clear, and exact descriptiouthereof, which will enable'others skilled in the art to make and use the same, reference being bad to the accompanying drawings, forming part of this specification.

This invention. relates to new and useful improve? ments in machines for threshing grain, and winnowing or cleaning it at the same time, beingthat class of threshing-machines known as separators, and consists in the peculiar construction and arrangement of parts hereinafter described.

In the accompanying plate of drawings;- Figure -1 represents avertical sectional elevation of the machine through the line a: :vof fi'g. 2.

Figure 2 is a top or plan view. Similar-letters of reference indicate corresponding A is the cylinder, which revolves beneath the concave B, both being provided with suitable teeth, for separating or loosening the grain from the heads.

0 represents the apron, from which the grain is fed to the machine. y

The cylinder is revolved by means ,of a belt, D, whichpasses over a pulley, E, on the end of the cylinder-shaft, from a pulley or band-wheel on the end of the driving-shaft.

The driving-shaft is connected immediately with the horse-power by means of the cog-wheeler pinion F.v

Another band from the pulley E drives the straw- .catcheror cylinder G, which is madetorevolve in an opposite direction from the main cylinder, and which catches the straw, andcarries beneath it, overthe .bed or open concave H, through which the grain drops on to the sieve I, from whence it falls on to the sieve J, and from thence on to .thescreen K;- from thence it drops into the receiving-box L, and is discharged from the spout N, cleaned, and readyafonmarket.

The straw is carried from the machine over the perforated apron.M,'-whicl'1 is connected with the coarse sieve I, and partakes of itsmotion.

I 11 the sieves and the screen K are givema longitu' ma motion, by means of thebar O, -which.is pivoted' to the under side" of the feeding-apron 0'.

Thedriving-shaft has a crank formed on it, to which the pitman B is attached at one 'end. To the other end, thebar'O is attached, as seen in the drawing.

The sieves are connected with the bar by the rods R, and the screen K is connected with the sieve J so that when the bar 0 isvibrated by the pitman P, all

the sieves, with the screen and strawatpron, are given a longitudinal motion, or are thereby shaken with sufficient violence to thoroughly separate the grain from the chaff.

S S are sliding slotted bars, attached to the lower timbers of the machine-frame by belts or screws, so that they may be moved back and forth, for supporting the horsepower, when being transported from place to place with the machine.

The sieves and screen rest uponfiiction-rollers, as seen in the drawing, so that the friction produced by their movement is very slight.

'l is an apron, which carries the grain which falls desirable or convenient.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent-'.

1. The vibrating-bar O, and the method of shaking the sieves, and screen, and 'the straw-apron substantially as herein shown and described,' for'thepurposes set forth. p

2. The bars S S,-iu' combination with a threshingscribed.

3. Giving motion to the sieves of a threshing-machine by means of a crank on the driving-shaft, substantially as set forth.

F. .A. GE1SLEB.

-Witnesses:

NATE. .S. GREENE, Armin N. SPERRY.

machine, substantially. as and for the purposes de-- 

